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![MMSC 490 practice quiz 9 chapter 16- Correctly Answered](/docpics/4809847/65fd4595ab53b_4809847_121_171.jpeg)
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MMSC 490 practice quiz 9 chapter 16- Correctly Answered
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MMSC 490 practice quiz 9 chapter 16- Correctly Answered 
Signaling by neurotransmitters is an example of _______ signaling. - Answer ️️ -paracrine 
Peptide hormones and growth factors act on target cells by binding to cell surface and _______ 
receptors. - Answer ️️ -soluble extracellular 
The effect of acetylcholine on the heart muscle cells is to - Answer ️️ -stimulate one 
contraction 
Aspirin inhibits ______ synthesis. - Answer ️️ -prostaglandin 
Diacylglycerol and calcium ac...
![MMSC 490 Exam 3 (Set 3) Questions and Answers](/docpics/4809844/65fd45927316b_4809844_121_171.jpeg)
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MMSC 490 Exam 3 (Set 3) Questions and Answers
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MMSC 490 Exam 3 (Set 3) Questions and Answers 
The eukaryotic cell cycle is composed of four phases in the following order: 
S; G1; G2; M 
G1; S; G2; M 
G1; G2; S; M 
G1; M; G2; S - Answer ️️ -G1; S; G2; M 
The length of time it takes for the cells labeled during DNA synthesis to begin to enter mitosis is 
a good estimate of the length of the .............................. phase(s). 
G2 
G1 
M 
S - Answer ️️ -G2 
In a typical cycling mammalian cell, .............................. of the ...
![MMSC 490 Exam 1 PQ Questions and Answers](/docpics/4809839/65fd456080fb7_4809839_121_171.jpeg)
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MMSC 490 Exam 1 PQ Questions and Answers
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MMSC 490 Exam 1 PQ Questions and Answers 
The light microscope was used to observe the cellular structure of cork by ____, who named the 
chambers "cells". - Answer ️️ -Hooke 
Which fish is proving to be a useful model organism for the study of vertebrate development? - 
Answer ️️ -Zebrafish 
Arabidopsis thaliana is a model organism for studying the molecular biology of - Answer ️️ - 
Plants 
The original cell was thought to have arisen from the enclosure of self-replicating ____ b...
![MMSC 490 practice quiz 1- Correctly Solved](/docpics/4809835/65fd455d5a587_4809835_121_171.jpeg)
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MMSC 490 practice quiz 1- Correctly Solved
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MMSC 490 practice quiz 1- Correctly Solved 
At the time life arose on Earth, Earth's atmosphere contained abundant amounts of all of the 
following except - Answer ️️ -O2 (H2, N2, and H2s were all present) 
RNA is believed to have been the initial genetic system because it can - Answer ️️ -catalyze 
the polymerization of nucleotides into another RNA strand. 
Mitochondria and chloroplasts resemble bacteria in that they - Answer ️️ -- have their own 
DNA 
- have their own ribosomes 
-...
![MMSC 490 practice quiz 6 chapter 7- 100% Correctly Solved](/docpics/4809827/65fd452422ebc_4809827_121_171.jpeg)
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MMSC 490 practice quiz 6 chapter 7- 100% Correctly Solved
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MMSC 490 practice quiz 6 chapter 7- 100% 
Correctly Solved 
Which of the following does not contribute to the large variety of antigen-binding specificities 
found among the immunoglobulins? - Answer ️️ -retrotransposons 
In addition to synthesizing DNA, DNA polymerase I has a second catalytic activity; it can - 
Answer ️️ -remove RNA primers 
How many replication origins are there in the human genome? - Answer ️️ -30,000 
DNA replication is - Answer ️️ -semiconservative 
Which o...
![MMSC 490 Practice Quizzes Modules 1-4 with complete solutions](/docpics/4809817/65fd44ae394b3_4809817_121_171.jpeg)
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MMSC 490 Practice Quizzes Modules 1-4 with complete solutions
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MMSC 490 Practice Quizzes Modules 1-4 
with complete solutions 
The feature that most clearly distinguishes eukaryotes from prokaryotes is the presence of .......... 
in eukaryotic cells. 
RNA molecules 
a nucleus 
oxidative phosphorylation 
ribosomes - Answer ️️ -Nucleus 
Cytoplasmic organelles are 
absent in both prokaryotic and eukaryotic cells. 
present in prokaryotic cells and absent in eukaryotic cells. 
absent in prokaryotic cells and present in eukaryotic cells. 
present in both prok...
![MMSC490 Questions Final chp.18 Exam Questions with Correct Answers](/docpics/4809808/65fd446e396f5_4809808_121_171.jpeg)
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MMSC490 Questions Final chp.18 Exam Questions with Correct Answers
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MMSC490 Questions Final chp.18 Exam 
Questions with Correct Answers 
The Bcl-2 family of proteins is divided into three functional groups that contain and share as 
many as four Bcl-2 homology domains (BH domains). Which of the following is common to all 
members of the Bcl-2 family? 
a. BH1 
b. BH2 
c. BH3 
d. BH4 - Answer ️️ -BH3 
which of the following stem cells have the capacity to give rise to all the differentiated cell types 
of adult organisms? - Answer ️️ -embryonic stem cells ...
![MMSC490 Exam 1 Questions and Answers | Verified & Updated](/docpics/4809806/65fd446b3a640_4809806_121_171.jpeg)
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MMSC490 Exam 1 Questions and Answers | Verified & Updated
- Exam (elaborations) • 14 pages • 2024
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MMSC490 Exam 1 Questions and Answers | 
Verified & Updated 
The feature that most clearly distinguishes eukaryotes from prokaryotes is the presence of..... in 
eukaryotic cells - Answer ️️ -a nucleus 
Cytoplasmic organelles are - Answer ️️ -absent in prokaryotic cells and present in eukaryotic 
cells 
The eukaryotic nucleus contains.... DNA molecules - Answer ️️ -multiple linear 
Stanley miller applied electric sparks to a reducing atmosphere of methane, ammonia, water, 
hydrogen, an...
![MMSC 490 Questions FINAL Chp.17 with 100% correct Answers](/docpics/4809801/65fd446822380_4809801_121_171.jpeg)
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MMSC 490 Questions FINAL Chp.17 with 100% correct Answers
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MMSC 490 Questions FINAL Chp.17 with 
100% correct Answers 
Damaged DNA is sensed by a complex of proteins that activate the protein kinase - Answer ️️ 
-ATM or ATR 
Fertilization of a frog egg triggers the resumption of meiosis by an increase in - Answer ️️ - 
Ca2+ 
The retinoblastoma protein (Rb) binds to and inhibits - Answer ️️ -Transcription factor E2F 
MPF is a general regulator of the transistion from - Answer ️️ -G2 to M 
At fertilization, the sperm binds to a receptor on...
![MMSC490 Final Exam Questions with 100% Answers](/docpics/4809796/65fd4439b692c_4809796_121_171.jpeg)
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MMSC490 Final Exam Questions with 100% Answers
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MMSC490 Final Exam Questions with 100% Answers 
Humans possess about .............. different cell types. 
100 
200 
500 
1,000 - Answer️️ -200 
In adult organisms, cell death must be balanced by cell 
growth. 
differentiation. 
renewal. 
migration. - Answer️️ -renewal 
The distinct series of changes that characterizes programmed cell death is called 
necrosis. 
apoptosis. 
sepsis. 
execution. - Answer️️ -apoptosis 
Cells that die as the result of acute injury undergo 
lysis. 
sepsis...
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